Quenching press



Aug. l2 1930.

` I| D. sLADE QUENGHING PRESS Filed Jan. so, 1929 -2 Sheets-Sheet 1 fig 5 Leo/z Vade yr. Y

AT`TORNEY L. D. SLADE QUENCHING PRESS Aug. 1'2, 1930. 1,112,5ysv

Sheets-Sheet 2 Filed Jan. 30, 1929 Fig. 3

` INVENToR [son D S/dac i ATTORNEY 30 o l A i ``Figure-15 is apvi'ew *onan enlarged 'scale' showing in sectionldetailsfy oli-:the lfluid; `p1`es-,v `sure Ycontrol mechanism for operatjingfthefeX--o 4 vatented Aug.` y i* to prevent distortion duringjjthelquenehngoperation, to providedy pression vvhiclhigearsfv-v m ot'largesizes can be `quiekl'y'andfexpeditious;j which `*will befsimple'and d ly handled and one efficient in operation.

parent hereinafter Afrom `the specification-'land V15 fromvthe-recital of,theappendedclamsl?f o A preferred l,enloodinue'nt offt-,hfeinventi-on; o

lis illustrated iny-'thefaecompanyin'g ravvings inwhieh:Nrw il? l Figure '1 'is aA` yvertical-sectional view off a quenching press lhuilt aecordngtofthis -in` venden, `showing [the parts finfth position f v they` assume in tHe-quenching r(")periton showing the nartsininoperative position;y

Figurezisa planviewotheeXpanSible" gripping:.memberiv 1n with aj. gear; y

pander; Y

`35 Referring to the' drawings bfyfnumerals of` reference, 'the press-shownfis provided vvithfa base lOIWhich 3is constructed' infsuc'h-mannerf Y u as to providel a reservoir 1fl ,fthe{hottrniwallf of which is indieatedfat F12: 'ffllhie` 'basel 10= is:

404 of general'cvlindricalshane.l` lormedfinte.y

gral Withtliebottomwall 12 oi the'reservoi'r;

ber 13 is' provided a central `bore/for 'a' o fu purposevvhichwvill"hereinafter appea r.jf Y Th'etsi'de yWalkofwthejbasejorframe,lOyfislf provided internallygabove ythe `hott'ornjWall f l2 ofztheresevoirWithf-an :internal ringjorl i thepesicin jslnswn'in The maar 20 his; itsppfaface @girarmaar bsseff-cdrbisvhidiisa .jisformedi on thelippenend`V of '/thelgbase or;V

tending* :externally of said sleeve` or" giiide.`

The tvvo glanges 'irland l5 serve asfa Support` orf rest `uuori-jvvhich there `is vsec'ured bfy means p of the'fscrejws 16 and `l', fa rngimember or plate flnw'vh'ich is provided "with spaced rholes 55 o o ofplate 18serves o alower; ieixnembrQO'on which rthe' gea'rGvor other articletp be on t pmsfng; mung insta-nee; zpiufalifyfffarmg ssi; eojgyhich .Y1-The; iiulwhl` adapted'iorfthe quenching offlarglge" Qfears andv acompassaspossible,jtliearnis 30are`m`ounto twoparts *being` eonnectedtogether byla sereni ,o

L with parts broken 'awayandpartsshowninV` f' o section', showingl tlliefControl'mechanismI and? ngfpressshownisrfespecially; 'lofi L j 1,772,576 f onto the lower die 2O between the upwardly raised arms. Hardened blocks 35 are pro vided around the curb`32 to limit the downward movement of the arms 30.

5 Each of the arms 30 carries ata point intermediate its length a member 36 which will herei n fteirbe termed a foot. The feet 36 have shown, the bevelconforming to the taperof the upper. faoe'of" the bevel gear G to be quenched. TheseY feetf-arefdetachably secured to their respective arms 30 and they can be removed and others substituted therel4 for when a gear of a diiferent cone angle from that shown is to be quenched. They are secured upon the `arms bythe screws in the @eration of the quenching pressj the grip 'ng members25 are moved radially out-v ar .1x teenage@ the interior; 0.5, the, bore of m t e gear andt e arms30 are forced down into en ent with the `upper face of the gear to ggd thegear on the die 2 0 so that asthe nl er W gapping diw andthe melDS. for forcing the W 39. mte'ngagement, with thegeu G Wm Ravhe described.

The bottom 12 of the reservoir y11 isspacedj #Maele 4,9, wall-'of the cylinder 42, through `the ore qttbe sleeve or guide 131i. which tlslidesand muy ebow-fthe base. or frame/110., a

iin uppendfthfrison `rod. 4.6 c1113-` tii. asleeve'Q-which is hollowed out at its t an @diciem a chamber 0r cylinder 51.

` me is-securedageinst movement on t e plston 46 byA the` plate 52 and the nuts 53 and iwhih, servev Vto V4force the sleeve against Y eshclder. 5,5, termed vorrthe piston r0d46- ai h1;Jadrueii1`g:V its'diameter 'adjacentits upper e piston rod46 servesas a guidefor a r 69 whichis bored. t0 surround and s'lfiefontherod 46. rI his member 60is formed l i |E Hits upper end with a piston'l which recip` tatea in the cylinder lor chamberl' pro-jf videdin the sleeve 50. At its 1ower"end','the

is belledout andfformed to provofaieonical portion 621which serves yas an Gpexpnnder `to operate the expansible device,

y@instituted by the gripping members 2 5, onv dslmwudrmovement ofljthepiston 61.* 'The lgwqnemoith chamber 51 is closed by a eveled bottom faces in the instance thercoolfnt flows around the gear, the

til securely Aagainst distortion f Y or war age. The means for expanding the 46 is detachably secured tothe,

ternally'witha shoulder as indicated at 70V outwardly ofthe center line of the-piston rod 46 to engage the inner ends of the arms 30, when these varms are lowered to the position shown in Figure 1, as the piston rod moves .downwardl and Y upwardly, respectively.

Theplate 2 and ring 74 are spaced apart veavtcalliyV a distance greater than the height ofthearm 30 at their inner ends'so as to per, mit. of a slight movement, of the piston rod 46 in either direction before the plate 5 2 or ring 74, as the case may be, engages the arms t0 move, the same. l .Bath the. expandero' and the piston 43. are actuatadbyfuid pressure, preferably by com.` pressedair v 8.0y ',(Fig. 3) deslgnates the air supply line. 8l.; designates thefQorline in Figure 3 and thev air may be pumped into, the Supply line 80 from, asuitably located compressor. The upperendof the.. piston 61 is connectedv at all Vtimesjwith the airsupply line 80 so that a head ofair is continuously urging the piston 61 andexpander 65:?,y downwardly into operative position.y This connection is maintained through the T 83, the strainer 84, the valve' 85, the piping, 86 (Figs 3 and 1), the port 87' in the, side Wall of the; sleeve 13 (Fig. l),y the longitadnl. slotv 88 formed inthe piston rod 46 andthe` ducts 89,190, and 91 drilled in this piston rod 46.'k 'The duct 91 communicates with the. Cylilldcor chamber 51 above the upper end oty the .piston-...61;v The slot 88 isv formed fora portion only of the length of thep'iston 46 and to prevent 'leakage ofthe air from the slot along the rod, piston rings 92 or any other suitable packing may be provvided on the piston rod 46v above and below the s1ot. fTo prevent leakage of the air betweenl tliefpistony 61. and the pistonrod 46, other piston rings 93 may be vpla'acedoni'the pistn 1md46 below the duct 91. rThrough Vtheineaixs just described, it will be seen that thefchamber 51'is constantly connectedwith the' air supply 80 in such manner that the air tends to; force the piston 61v at all times downwardly in the chamber 51. -l The amount of air pressure in the line' 86 can be adjusted by the valve 85 to meet-` conditions and maybe read against thefgage 95 (F1g'3)'.ff 1 v 100 designates a four-wa valvev which is controlled manually `by the andle` 101 (Figo 3 '1 `The valve 100 isconnected with opposite ends of the-pistoni@ by pipesA 102 and 103- Fig. 1j).'y This `valve 100 isyalso', connected' with, a, perm anenty exhaust. line `104 (Figr) Itis. cnnnectedwith the supply line'by'ythe:

` imagsrze adjiisted andthis'pres'sure een k*be .re'dby the gage 108. It Will'be 'cler thatfwlin `the) 102 will' bepm cnisuppiy and the pijp@ 103 en the chamber`42.

"to iiaideii thejoperating siffalees f fthe teeth .and any othei" paits i ofi-the gear' ywhich may require hardening "f To kObtain' `the lhigh rate of Circulatieh 'Qt'eileqiiired for. the quenching, ducts tire previdedabove and bef maximum viiime 0f bili `quickly Jaround l the die vform simpiyef holes 0i; apertures y110 im (Figs).withdVsuppiyzpipeliis;

thefgear;

Y 1118 frecennected vvith la.; siippvlyf-pipleifll() inseitedf'in the liiieWhich valve mitte iiowfbffbii; After. the initialY drfas'tiel Y diminished By shutting off the valves" 1261111@` f' The" Overflow" from the i'eervoif is carried eff thij'ou'gh the'fseries Oigfopeniiigs v135 :1116.136 piv'ide'd,"ijepectvely, in jthefinside* and 11p# f iiithis trOgh'i/mdthefcoiidu'it iii turn i iiiuni'ctes Withfthepi'pes 138? Whichyin turn,

he maliilulgited` by`r` the leve j f 'Iii Operation; with thejparts as'shevvhim 50 andiasjsieted paritein the"polsition1shtwfnjy iii that filgure,A Vthe hot gear., to,v be quen'ehed" 90 eziiii 'bei lowered `onto Athey lower die 20:' The :feet 36. ofv` the4 arm "330, A vvillhave been Iirevii medie-:i101amiga-sg) O .iadmit-airwiihc luder 4 2 above the-pistn@ through ith'ejpipe i is themlve compi VVw preferably, as toY ,30' beyond a orizontal osition. Y The f mmmentin thev cylinder 51 by the head of ir-.inthe cylinder and further downward ,ment `of piston 61' is prevented by Ve ri 65 whioh'ls secured to the sleeve 50. As t e piston vrod-16 moves downwardly,

' N msm-move downward about their pivets 34: `following the rest 7 4 and the piston 61 moves downward followin the ring 65 undal' im ulseofthe head of air in the chamber tapered end 62 of the expander now comes into engagement with the correspondingly ,ta `red` portions of the segments 25 :gang t ese segmentsl outwardly tov engage bore of the gear and center it on the die 201y The movement `of the expanderl 60l is u gradually; slowed up and finally stopped ,when the ripping piecesf hold the gear G rigidlyal te way around the interior of Y its bore. The piston 61 isthus held against further downward movement, but the sleeve 50 containing the chamber 51 continues to move downward with the piston rod46. The "ad of pressure in the chamber 51 forces gripping ieces 22S-into such intimate ens gement wit the gear G that it is held so t it 'canlotdistort in the quenching oper- Minn. yTo prevent building up toogreata pressure inthe further downward movement 0f the pstonrod 46, af relief valve `150 (Fig.

a 3*) is'provided in the line 86.

In the further movement of the piston rod Q5 downwardly, the arms 3() leavethe rest (4. andare engaged `at their upper ends by the plate or ring 52. Through this platev or ruig 52, pressure,v isy brought to bear upon these arms to the gear on the lower dieand to hold` 1t in such manner that` war- Vof the geen in the quenching operationy in prevented.`v Thefblooks are so placed, revent movement of the position :of the several parts' uring quenchigglis shownin Figure 1., Y 1 y 1 .At the a ro Yriate time, the operator PP P 4..V 4ves-the -levers ,127fand 132 (Fig. 3) to ood the reservoir with oil or other coolant.

circulates around the gear to producethe chill which hai-dens the gear.A Y

When the quenching voperation Vhas been u c leted, the operator reverses the valve hand le 101 (Fig. 3) to` put the pipe 103Y (Fig. 1 supply and the pipe 102 on exhaust. piston 43 and piston rod lvnow vmove upwardly.' The `sleeve 50is preferably' so y Il oQuitternoted. that at the 'extreme limit of on ofthe piston 2 rod 46, the ring `"IILstrikefsthe amis t0-before thering 65V engages the lower .fce'lof the piston' 61. p rms 3D are released from engagement with 'i %08.r-b2f0rejtbe ring 65' engages'the .pisu t@ 1 Ito release the y eapander 60 and the Consequently, the

gripping pieces 25. The upward movement of theepiston rod 46 continues until the piston 43 reaches its upperlmit position in the chamber 42. Ther arms 30 can now b e lifted to rtheir raised position shown in Figure 3 andthe now hardened gear taken o6 of the lower die. Figure 3 shows the inoperative i position ofthe parte.

the limits of the appended claims. e

Having thus described my invention, what Iclaim is zj v Y 1v. In aquenchin press, a reservoir, a. lower die` fixedly secure vin said reservoir and adapted to su port the article to be quenched,

oscrics of ra lolly extending arms movably mounted on said reservoir and adapted to engage theopposite surface of said article, an expansible gripping device associated with the lower die, an expander for operating the grip ing device, means for moving the ex- .pan er into engagement withthe grippinv device, means for subsequently forcing said rarms into engagement with the article, means `for supplying av coolant to said reservoir, and-meanswfor conducting the overflow of coolant from said reservoir.

2. vIn a quenching ress,a reservoir, a lowerdie fixedly secure Yin said reservoir above .theibottomthereof and adapted to su port article to be quenched, a series of radially extendingV arms dpivotally mounted on4 said rservoir adapte to engage the o posite surface of the article, an expansib e gripping device. associated with the lower die, an expander/for operating the gripping device, means for moving the expander-.into engage mont 'with the gripping device, means or subsequently forcing said arms `into en gcmcntwith the articlefmeans for vsu p ying coolant Vto said reservoir above -an below thelovaer die, and means for conducting the overfiow of coolant from said reservoir. y

. V3. In a quenching press for quenching taperedgeare a reservoir, e lower die xcdly se- Tcure i y rport thecgear to be quenched, a series of ra.-

nsaid reservoir and adaptedto supas fall vwithin the scope 'of the invention or 4 dially` extending arms` pivotally mounted on p said f reservoir 'having tapered Yfoot portions for1 @engin ,lthe beveled upper face of e gear, e v ri: a

ser#

with the lower vdie adapted to engage said gear,'an expander for operatingthe gripping device means for movin@ the eX ander into 7 Y l b vengagement with the gripping device, means' for subsequently forcing the foot portions of said arms into'engagement with the gear, means for supplying coolant to said reservoir and means' for conducting an` overflow of coolant from said reservoir.

4. In a quenching press, a lowerdie adapt- `ed to support the article to be quenched, an

expansiblemember carried by the lower die adapted toengage said article, a, cylinder,

' a piston reciprocable` in said. cylinder, aser ond'cylinder secured to said piston, a piston reciprocable in the second cylinder, lan cx? pander secured to the second piston adapted ,to operate the `gripping dei'fice,fan-upper die member, means on'A the first piston for moving the upper die into and out of engagement with the article Vto be quenched, means for supplyingfluid pressure to one end ofthe second piston to urge the same continuously in one direction, means on the iirst piston for moving the secondpistoninthe opposite'dif rection, and meansfor admitting fluid pressure to opposite ends kof the lirsty piston to` move-the same in opposite directions.

' V5. In a quenching press, a reservoir, a'lowj-l er die liXedly secured 1n said reservoir and adapted to supportthearticie to be quenched, a series of radially extending arms pivotally mounted on said reservoir and. adapted to engage theopposite fa'ceofsaid article,kan eX- pansible membercarried by the rlower die and adapted to engage said article, a cylinder, a

piston reciprocable inVv said cylinder, ya sec-V ond cylinder secured tosaid piston, a lpiston reciprocable in said cylinder, anfexpander,

secured tothe second piston yfor operating the gripping device, means on the first piston4 for moving the arms into and out of engagement Vwith the article to be quenched, fmeans for supplying fluid pressure to one end of the second piston to urge the samefconstantly in one direction, means on' the first piston adapted to move the second piston `in the opposite direction, and means for admitting fluid pressure to opposite ends of the iirst piston.

6. In a quenching press, a reservoir, a low:- er die liXedly mounted in said reservoir and adapted to support the article to be quenched,

series of arms'pivotally mounted on vsaid reservoir and adapted to engage the oppo-` site face of said article, anexpansible gripping device carried bythe lower die adapted to engage said article,.an expander adapted to operate the gripping device, fluid pressure operated Vmeans for moving said expander into engagement with thengripping device and fluid pressure operated means for subsequentl ly moving said arms into engagement* with said article, a` i ant to saidreservoir.

7. In a quenching press, a reservoir, a

nd means for supplying acool#l lower die; 'fiXedly l mounted; in said `reservoir, and Iadapted to .support the article to ``be quenched, a- `series of arms pivotally mounted on said reservoir adapted "toengagertheopf posite face-ojt-said article,` anexpansible grippingdevicecarried bythej lower die adapted toyengage sai-d article, an expander` adapted toloperate the gripping device, A means y `for moving the expander into engagement rwithf.

thegripping device, means Yfor subsequently moving the; arms into ,engagement `with g ,the

article, means for withdrawingthe arms from engagement `with saidarticle, and' for subset-" quenntly",` withdrawing the l expander, .1 and; means for supplying a coolant to `said reser-l yvo1r.\f 1' f f Y ,118." In a quenching press, baser` havmg regervolriformed therelrt .a loverfdef-xedly securcdginy said base above the Vbottom ofsaidfik reservoirjand adapted to` 'supportthe article topp@ quencheman upperdie adapted ,toeren-N gage'k the opposite face' of said article,an elif-y pansiblemember carriedby the lower die 'pro-. videdyvithirjadially movable grippingl memes` bers jadaptedto'jengage the interiorlof saidarticlea cylinder in the base belowthe Joo1i-1 tom j ofv saidreservoir, a` piston,` recipro'cable inl said cylinderand having 1a ,pistonrod sew` Y .cured thereto which` extendsvthroughf the upf-n pery .wallof the; cylinder upwardly tliroliglrv Vmeniber,and having a secondcylinder securedA` thereto, "said second cylinder' being provided said lower die, andy through the expansible;

withacylindrical chambersurrounding said: i

pistonroed, a `secondpiston mounted to slide* Ain said chamber on saidlpiston rod, anex-;: pendel' Scented .t0 the. second Piston adapted to, operate-fthe,expansible member, means for` admittingluid pressure to both cylinders to move the pistons therein, and meansfor supplying acool'ant to said reservoir.

9.In a yquenching press, a base having Va reservoir formed therein, a lower die fixedly secured in said base above the bottom ofsaid reservoir land adapted to support an article to be quenched, an upper die adapted to engage the opposite face of said article, an eX# pansible member carried by the lower die provided with radially movable gripping members adapted to engagerthe interior of said article, a cylinder in the base beloviT the bottom of Vsaid reservoir, a piston reciprocable ico in said cylinder, a piston rod secured tosaid erativeposition, means for admitting uid pressure to opposite ends of the iirst piston,

A and means for supplying a coolant to said pipe direct refk'er-vor.` p

10. In: a quenching press, a base having a reservoir formed therein, a lower die ixedly secured in said base above the bottom of said reservoir and `adapted to support an article to' be quenched,v a series of radially extendin?? armsV pivotally mounted on said reservoir a ted to engage the opposite face of said rtl e, an expansible member carried by the lower die provided with radiallyggripping members adapted4 to engage' the interior of said'article, a cylinderl in the base below the bottom of the reservoir, a piston reciprocable in said cylinder, apiston rodsecured to said piston extending through theV upper wall of the cylinder upwardly through Ysaid rrlowerv die'and through the expansible member, a second cylinder secured to said piston provided with a "cylindrical chamber surrounding said stonv rod, a second piston mounted to slide 1n said chamber on said piston rod, an expander secured to the second piston adapted Yto operate the `expansible member,

means/on the first piston for `movin, v,said arm into andout of engagement with the article to be quenched, a supply pipe and an exhaust pipe, pi ing connecting the supply y wit one end of the 'second pist0n-'to admit fluid pressure thereto', pipes connected to op site vends ofthe first piston, a four-way va ve for controllin the connections of the last named pipes wlth the supply and exhaust pipe to control the admission of duid pressure to the first chamber, and means for supplying a coolant to said reservoir.

Y LEON DfSLADE. 

